Ye Zhenzhen's surprised expression was full of questions, "But the big brother who saved me was only fourteen or fifteen years old at the time, Senior Nan, you went to Nanlou Ancient Town after graduating from high school, and your age doesn't match." Pen × fun × Pavilion www. ｂｉｑｕｇｅ。 ｉｎｆｏ”

"I graduated from high school at the age of fifteen. Nan Zhiqiao said quietly.

"Huh?!" Ye Zhenzhen stared at Nan Zhiqiao beside her with wide eyes, and muttered for a long time, "Senior Nan, you were the big brother who saved me back then!"

Nan Zhiqiao nodded, "It should be right." ”

The moon is in the sky, the sky is full of stars, the peak of the morning glow, the two look at each other quietly, the cool mountain breeze blows, Ye Zhenzhen's mind is surging, the man in front of him is the big brother who saved him when he was a child, and when he was in Paris, France, it was Nan Zhiqiao who rescued himself from the Seine River, and saved his life twice......

Ye Zhenzhen slowly recovered from the shock and smiled happily, "Senior Nan, you saved me twice from the river, once in Nanlou Ancient Town when I was a child, once in the Seine River in Paris, saving lives is a great ......"

"So what?" Nan Zhiqiao smiled, his eyes as black as ink.

Ye Zhenzhen unconsciously poured out a sentence in her mind, "There is no way to repay the grace of saving your life, you can only promise it with your body." ”

Zhen Zhen trembled all over, slapped back the sentence in her heart, clasped her hands into fists, arched her hand towards Nan Zhiqiao, smiled, and said: "Great grace is not grateful, Senior Nan, if there is anything to tell me in the future, even if it is to go up the knife mountain and down to the sea of fire, I, Ye Zhenzhen, will not give up." ”

Ye Zhenzhen's rather heroic words made Nan Zhiqiao quite surprised, Nan Zhiqiao was stunned for a moment, and then followed Zhen Zhen's appearance, and responded seriously: "I haven't thought of anything I want you to help with yet, and when I think of it, I will definitely tell you." ”

"Good. ”

"Do you promise anything?" Nan Zhiqiao followed up and asked.

Ye Zhenzhen was stunned for a moment, and thought to herself, what does Senior Nan mean by this? Looking at the sly smile on the corner of Nan Zhiqiao's mouth, he won't think about any prank, right? ”

Nan Zhiqiao gently tapped Zhen Zhen's head with his hand, "Do you think I will let you do something illegal? Of course, I want you to do what you can." ”

"Hehe, that's good. ”

Zhen Zhen smirked twice, touched her head, and asked, "Senior Nan, you were only fifteen years old when you graduated from high school?"

"Well, I've skipped a few levels before, so I'm a little younger than my classmates. ”

"Most people graduate from high school at the age of eighteen or nineteen. Zhen Zhen sighed, "Sure enough, it's a great god, Senior Nan, you are so smart, you have inherited the excellent genes of your parents." ”

"Heredity is part of it, and there may also be a cause for genetic mutations, which are the driving force behind the evolution of races. Nan Zhiqiao explained seriously.

This Nanda god, because of his emotional words just now, actually explained the reason in a serious manner, Zhen Zhen laughed dryly, "Fortunately, this genetic mutation is in a good direction, and human beings have become wiser." ”

"Well, I hope that in addition to intelligence, human beings can also make progress in other aspects of the body, from the appearance of Homo erectus two million years ago, the appearance of early Homo sapiens 200,000 years ago, and the appearance of late Homo sapiens 50,000 years ago, human beings have evolved all the way, and their wisdom has been upgraded, but other aspects of the body have not changed much, especially in terms of immunity to viruses. ”

Speaking of human evolution, Zhen Zhen has also read a lot of information before, and said: "I have read a report before, that human genetic engineering, through the transmission of genetic information by external abiotic means, so that human beings do not need to wait for the slow steps of biological evolution, can increase the complexity of our DNA, and in the next thousand years, it is very likely that human beings will completely redesign DNA to create an improved human race." ”

"It's a possibility. Nan Zhiqiao nodded in agreement, and at the same time said, "This is just one view in the theory of human evolution, and there is also an opinion that there is no geographical isolation in the current population, and the interaction is too frequent to evolve into a better species." ”

Ye Zhenzhen combed her hair that was blown by the mountain wind with her hands, and sighed: "There are different opinions, there is also a saying, human beings are about to enter the sixth evolution, some scholars believe that when the environment changes, some substances in the human body will also change, these changes are for better survival, no matter how our DNA changes, we will adapt to it, and viruses are also one of the things we have to adapt to." ”

Nan Zhiqiao said: "In the evolution of mammals, there have always been viruses, viruses are closely related to genetic adaptation mutations, and humans, as a kind of mammals, although their intelligence is much higher than that of other species, their immunity to viruses is not as fast as the evolution of bat populations. ”

"Bats?" Zhen Zhen thought of the big fruit bats on the snack street, the big-footed rat-eared bats that eat fish on the lake in the middle of the mountain of Chaoxia Peak, and the American vampire bats that only heard their names but did not see their shapes, their immunity was even better than that of humans?

Zhen Zhen couldn't help but ask, "Bats are mammals, I know this, but do bats have better immunity than humans?"

"Well, bats can carry a variety of viruses without getting sick, which has a lot to do with the immune system of bat populations, and some scholars have studied bat populations and claim that the immune system adaptation of bats has been well optimized during the evolution of the population. ”

"It's a lot of pressure to get along with a population with better immunity than you. ”

Nan Zhi Qiao retracted his gaze at the starry sky, and turned to look at the woman beside him, the woman's dark eyes reflected the starry sky, as deep as a silver man, Nan Zhi Qiao looked at it quietly for two seconds, and asked softly: "Are you afraid of bats?"

"It's not that I'm afraid, I'm just wondering if the forest savage that my uncle said is also like a bat, with immunity beyond humans. ”

"You're thinking of savages again?" Nan Zhiqiao smiled, "Based on your curious personality, you want to come to Forest Park, it has a lot to do with the legend of savages, right?"

"Hehe, it's related. Ye Zhenzhen confessed, "Come here, maybe you can meet the legendary savage." ”

"If so, what do you want to do?"

"Bring one back and do your research. ”

"I can't fit such a large test subject in my lab. ”

……

The starry sky on a moonlit night, the meteor pierced the sky, the peak of the morning glow, the mountain breeze blew slightly, the two looked up at the stars, the topic ranged from bats to savages, from childhood anecdotes to colleague relationships, from human civilization to outer space exploration, the topic traveled through ancient and modern China and foreign countries, and unconsciously, the eastern sky has been slightly bright.

The two chatted all night.

The morning light is getting brighter and brighter, the clouds on the top of the mountain are within reach, the first rays of sunlight break through the dreamlike clouds, and in an instant, the hazy clouds and the morning glow merge into one, and the morning sun breaks through the clouds.